Type-writer attachment.



J. C. LODOR. TYPE WRITER ATTACHMENT.

APlLIOATIO'H TILED 1123.19 1912.

Patented Dec. 31, 1912.

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APPLICATION FILED T11R19, 1912.

Patented Dec. 31, 1912.

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' NITED STATES PATENT OFFICE.

JAMES C LODOR, WILMIHGTON, NORTH CAROLINA.

TYPE WRI'IER ATTACHMENT.

Specification ofjLetters l'ateatf Application filed February 1 9, 1912. Serial No. 678,453.

To all i vhom 'itlmay concern:

Be it known that I, James C. Lonon, a

citizen of the United States, residing at Wilmington, in the county of New Hanover and State of North Carolina, have invented An important object of my invention is to provide means-of the above mentioned character which will expedite the operation of a typewriter, saving boththe time and strength of the operator.

A further object of the invention is to provide means of the above mentioned char- I ac er, which may be applied to almost any of he well known typewriters without mate'rially alterin their construction.

A further 0 ject of the invention is'to provide means of the above mentioned character, which are simple in construction, positive in operation, and not hableto derange ments.

' the drivin whole.

Other objects and advantages of the present inventiomwi-ll be apparent during the course of the following' de-scription.

In the accompanying drawings forming a: part of this specification and-in which like numerals are employed to designate like parts throughout the same, Figure 1 is an end view of a ty writer showing my device applied thereto, *ig. 2 is a planiy ew of the same, Fig. 3 is a side elevation'of the device included in my invention, the same being enlarged and removed from the typewriter, Fig. 4 is a.plan view of the same, Fig. 5 is an end view of the same and Fig. 6 -iS a central longitudinal view taken through and driven rolls or cylinders. In the rawings wherein is illustrated av preferred embodiment 0-; my invention, the numeral 1 designates a typewriter as a For the sake of illustration I have shown my invention as applied to an Underwoodtypewriter-but it is to be understood that the invention is in no sense-restricted to the use of this type of machine alone, as it may be just as advantageously employed in connection with other typewriters.

The typewriter comprises a main frame 2, upon which is mounted the ordinary longitudinally movable carriage 3, carrying a rotatable platen 4. k

The numeralfi designates the ordinary lever employed to turn the platen and re- .turn the carriage to its normal starting position.

The numeral 4 designates a key-inward frame, within which are disposed the space bar 5 carried by levers 5 and keys 6 car ried by. levers 6".

Patented Dec. 31,1912.

It is believed that the above description of the typewriter will sutlice to properly illustrate the application 'of the present in vention to the same. v

Thernumeral 6 designates a horizontal base, which is rigidly connected with the lower end portion of the frame 2 and car ries upstanding supports or brackets 7 ant 8, =as shown. Jo'urnaled through then brackets is a rotatable shaft 9 having a driving cylinder or roll 10 rigidly mounted thereon. The roll-,lOzis provided near its rear end with an annular groove 11, to re ce 1ve a belt 12, having suitable connection with the motor or other source of power. it its opposite end the cylinder or roll 10 1s providedqwith-la conical opening 13, to receive a reduced conical end 14 of a driven cylinder 01" rol1'15 The: cylinder or roll 15 is loosely mountedfon' the shaft 9'and is free to both turn-andmove longitudinally on this shaft. The cylinder orroll 15 is provided at its forward end with'.-,:a short sleeve 16, carrying Ja -head 17, as shown.

The cylinder or roll 15 is moved .lo'ngitudinally into locking engagement with the roll 10 by a. swinging key or element 18, pivotally mounted upon the up or end of the bracket'jfas shown at 19. T is key carries near its forward end a depending fork 20, stra'rjdting the shaft 9 and engaging the head 17%;!) shown. The element 18 is nor mally held in its elevated position by com pressible coil spripg or springs 21, which are connected with the base 6 and the fork 20.

Disposed outwardly of the key board frame 4 is an operating bar 22, which is substantially U-shaped and has its inner ends pivotally connected with the frame 2, as shown at 23. Upon one side, the U- shaped" bar 22 carries a wing or extension 24, adapted to engagethe key orelement l8 and swing the same downwardly when t-h bar 22 is moved downwardly.

At its forward end the rotatable shaft 9 has a friction gear 25 rigidly connected therewith, engaging'an intermediate double friction car 26, which is suitably journaled in a fix bracket 27. The friction gear 26 engages a friction gear 28, which is rigidly mounted upon a horizontal shaft 2t), having one end preferably journaled through the base 6 and the other end through a hearing (not shown) attached to the key board frame. Rigidly mounted upon the shaft is a sleeve 30 carrying preferably diametrically arranged slightly curved blades 31. The levers 5 of the space bar :7 and the lc vers tllvor' the keys 6* are ea h provided at their forward end with a tooth or extension 32, whi h is disposed out of the path of travel of the blades 31 when the'levcrs are in their most elevated positions. \Vhen the operator first slightly depresses the lever, the extension is swung downwardly and assumes a position in the path of travel of the rotating blades 31, to be engaged thereby and further depressed by the same.

Connected with the lever 5 is a cable 33, trained about a guide pulley 3 t and extending downwardly and attached to the cylinder 1-"), as shown.

The operation of the device is as follows: The roll 10 is being continuously rotated which rotation is imparted to the shaft 29 and the sleeve 30 carrying. the l'ilades ill. The operator.firstly slightly depresses a selected hey 6* or the space bar 5*, which brings the tooth or extension 31. into the bath of travel of the blades The blade now engages the tooth or extension 32 and carries the lever attached to the same downwardly for the full extent of its travel. in this manner the rength of the operator is saved and the machine operated more quickly. As soon as the blade 31 rotates out of engagement with the extension 32,

the key lever at once returns to its normal elevated position, to bring the extension 32 out of the path of travel of the blades. When it is desired to move the carriage to the right to its normal starting position the operating bar 22 is depressed, whereby the cylinder. or roll 15 is moved into looking engagement" with the roll, 10, causing the cable 33 to he wound upon the roll 15. This cable polls on the lever 5, causing the platen 4 to be turned for spacing the line and subsequently ell'ecting the longitudinal travel of the carriage 3. When the earriage has reached the end of its travel to the right, the bar 22 is released and operative connection broken between the rolls 10 and 15. i

It is to be understor d that the form of my invention herewith shown anddescril'ied is to be taken as a preferred example of the same, and that certain changes in the shapes, sizes, and arrangements of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claims.

Having thus described my invention, I

1. The combination with the carriage of a typewriter, of a rotatable shaft, a roll mounted thereon, means to rotate the roll,a second roll loosely mounted on the shaft and adapted upon being moved longitudinally in one direction to have locking engagement with the first. named roll, means to efiect the longitudinal movement of the second roll, and means connecting the second roll rot atahle shaft.

3. The combination with the carriage of a typewriter, of a rotatable shaft, a roll rigidly mounted thereon, a second roll looselymounted on said shaft and movable toward and away from the tirst named roll, connecting means between the second roll and the arriage, means iiulnding a swinging element to shift the second roll, and a pivoted lever to operate the last named means.

4. The combination with the carriage gt a typewriter, of a roll, means to. roFate the same, a second roll longitndinfilly. movahly mounted into and out 'of engagement with the first named roll, a cable connecting the second roll. and carriage, a movable element to longitudinally shift the second roll, and a manually operated element to move the first named element.

5. The combination with the carriage of a typewriter, of a driving element provided at one end with an approxin'iately conical opening, a driven element provided at one end with a reduced approximately conical extension to engage in said conical opening,

connecting means between the driven element and carriage, means to longitudinally shift the driven element, and means to rotate the driving element.

In testimony whereof I attix my signature in presence of two witnesses.

JAMES C. LODOR. \Vitnesses:

H. V. CoNLY, ILH. Fons. 

